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Posted to dev@openjpa.apache.org by "Mark Struberg (JIRA)" <ji...@apache.org> on 2010/11/29 17:39:10 UTC
[jira] Created: (OPENJPA-1898) TestQueryMultiThreaded fails with
OOME "unable to create new native thread"
TestQueryMultiThreaded fails with OOME "unable to create new native thread"
---------------------------------------------------------------------------
Key: OPENJPA-1898
URL: https://issues.apache.org/jira/browse/OPENJPA-1898
Project: OpenJPA
Issue Type: Bug
Affects Versions: 2.0.1
Reporter: Mark Struberg
here comes the stacktrace:
<error message="unable to create new native thread" type="java.lang.OutOfMemoryError">java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:597)
at org.apache.openjpa.slice.TestQueryMultiThreaded.testHeavyLoad(TestQueryMultiThreaded.java:236)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:154)
reducing the thread count to 800 should help to prevent this problem. This might be caused to the 1024 processes ulimit on most linux installations.
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[jira] Updated: (OPENJPA-1898) TestQueryMultiThreaded fails with
OOME "unable to create new native thread"
Posted by "Mark Struberg (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mark Struberg updated OPENJPA-1898:
-----------------------------------
Attachment: OPENJPA-1898.patch
reduce parallel threads from 1000 to 800. Now it's not very likely that any user hits the default 1024 threads limit, but we still have enough parallel loops running
> TestQueryMultiThreaded fails with OOME "unable to create new native thread"
> ---------------------------------------------------------------------------
>
> Key: OPENJPA-1898
> URL: https://issues.apache.org/jira/browse/OPENJPA-1898
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.1
> Reporter: Mark Struberg
> Attachments: OPENJPA-1898.patch
>
>
> here comes the stacktrace:
> <error message="unable to create new native thread" type="java.lang.OutOfMemoryError">java.lang.OutOfMemoryError: unable to create new native thread
> at java.lang.Thread.start0(Native Method)
> at java.lang.Thread.start(Thread.java:597)
> at org.apache.openjpa.slice.TestQueryMultiThreaded.testHeavyLoad(TestQueryMultiThreaded.java:236)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at junit.framework.TestCase.runTest(TestCase.java:154)
> reducing the thread count to 800 should help to prevent this problem. This might be caused to the 1024 processes ulimit on most linux installations.
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[jira] Resolved: (OPENJPA-1898) TestQueryMultiThreaded fails with
OOME "unable to create new native thread"
Posted by "Michael Dick (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dick resolved OPENJPA-1898.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
2.1.0
Assignee: Michael Dick
Thanks for the patch Mark, I've committed it to trunk and 2.1.x.
> TestQueryMultiThreaded fails with OOME "unable to create new native thread"
> ---------------------------------------------------------------------------
>
> Key: OPENJPA-1898
> URL: https://issues.apache.org/jira/browse/OPENJPA-1898
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.1
> Reporter: Mark Struberg
> Assignee: Michael Dick
> Fix For: 2.1.0, 2.2.0
>
> Attachments: OPENJPA-1898.patch
>
>
> here comes the stacktrace:
> <error message="unable to create new native thread" type="java.lang.OutOfMemoryError">java.lang.OutOfMemoryError: unable to create new native thread
> at java.lang.Thread.start0(Native Method)
> at java.lang.Thread.start(Thread.java:597)
> at org.apache.openjpa.slice.TestQueryMultiThreaded.testHeavyLoad(TestQueryMultiThreaded.java:236)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at junit.framework.TestCase.runTest(TestCase.java:154)
> reducing the thread count to 800 should help to prevent this problem. This might be caused to the 1024 processes ulimit on most linux installations.
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You can reply to this email to add a comment to the issue online.